The most practical thing you can find in high quality lenses!!! Excellent.
16/12/2025
does not work in wet environments or underwater. underwater it gets messed up and filled with bubbles. and if its a wet environment condensation builds up on the inside and blocks the lens view.
02/12/2025
This ND filter is great! Here are my thoughts:Packaging: I’ve previously purchased an ND filter from K&F Concept, and the packaging was always excellent. This one is no exception. It comes in a nice plastic container to hold the ND filter, and the overall packaging is clean and well-designed.Quality: For the price, this ND filter is very well-made. To attach it to the DJI Action camera, simply slide it onto the lens, and it holds securely with friction. It’s a tight fit, so it won’t come off. The rubber friction is a great feature!The filter itself is also well-built, and the variable knob for adjusting exposure is made with quality.So far, I haven’t had a chance to fully test the filter, but I haven’t noticed any significant vignetting. Overall, I’m very impressed with this ND filter and highly recommend it to anyone looking for one for their DJI Action camera!
25/11/2025
A good ND filter is an easy way to step up the quality of your footage This variable ND is easier to use than the screw on types. The image quality of the footage is great. The 5-9 stop range generally works well for varied well lit situations. Pairing this with a 2-32 would cover most situations and they would be fast to swap out and push on. It think it's a good value, especially if you mostly file in broad daylight, but the set of both filters is a better deal in my opinion.
18/11/2025
I used to think that you don't need to use any sort of filters on a video camera. They're definitely needed to get the most from your camera while shooting video. It definitely makes the footage more cinematic. Just need to ensure that the ND filter you install allows you to drop the shutter speed to twice the frame rate. So if you're shooting at 60fps you want your shutter speed to be 1/120. The ND filters press on to the DJI Action 4/5 over the existing lens which ensures that you don't need to unscrew the existing lens.All in all these are great!
11/11/2025
This is a simple to use, press fit style Variable ND filter for the Action 5 Pro (and potentially others). I've seen many other options for actions camera ND filters, but most of them involve a multiple filter/lens kit for different ND strengths. But what's the point of having an ultra portable camera on the go if you have to cart along bags and bags of gear? This comes in a nice plastic clamshell case that locks shut, has a completely metal/aluminum frame, has rubber grips for a snug press fit, and clear markings to see the ND filter strength. This is everything I could hope for in a VND for on the go filming.A note on a fixing this for the first time... It may seem a bit snug, so gently wiggle the ND filter (clockwise and counter clockwise) as you are pressing in on the camera. This will help the little rubber teeth to find a spot the like.Enjoy!
04/11/2025
Perfect! I do a lot of shooting in bright conditions, including on water and these were perfect! I'm not going to go into how ND filters work, you can look that up, but if you want a good quality one, these are it and at a reasonable price! It fits over the factory lens cover (have to remove the rubber ring) and it holds on tight so no worries about it falling off! You get two densities, both ND2-32 & ND32-512 and they both work well!
28/10/2025
Works great for my Osmo Action 5 Pro for quick VLOGGING!! K&F Concept Push In Fit Variable ND2-32 filter is easy to install, feels solid, and gives me flexible control over exposure in bright conditions. Image quality stays sharp, and it really helps with motion blur for video. Highly recommend for anyone filming outdoors!
21/10/2025
I'm using these K&F Concept Push-In Filters on my DJI Osmo Action 5, and as with any good ND system, it really elevates the quality of my footage. The variable ND2–32 has hard stops, so you don't get “X” darkening artifacts, and the CPL brings out vibrant colors while cutting down glare for outdoor scenes, particularly with greens of foliage and blues of water. The mist filter adds a subtle, cinematic softness without overdoing it. Build quality feels solid, though the push-in fit could be more secure. Still, they’re easy to install, nicely packaged, and don’t add any unwanted color casts. Great results across the board—highly recommend for Osmo Action users looking to level up their visuals!
14/10/2025